On the determination of ultrasonic waves emitted from transducers using laser measurements with applications to defect determination problems
On the determination of ultrasonic waves emitted from transducers using laser measurements with applications to defect determination problems
复制标题
使用激光测量确定从换能器发射的超声波及其在缺陷确定问题中的应用
DOI：
10.2208/journalam.4.145
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Shoichi Kobayashi
中科院分区：
文献类型：
--
作者：
H. Yoshikawa;N. Nishimura;Shoichi Kobayashi
本文讨论了由激光测速数据确定超声换能器产生的弹性波的反问题。反演的质量进行了测试，通过实验数据和模拟结果之间的比较与三维时域弹性动力BIEM使用并行计算。这些结果的一致性是令人满意的。还研究了基于激光测量确定缺陷的可行性。以高精度确定未知缺陷的尺寸和位置。
An inverse problem of determining the elastic wave produced by an ultrasonic transducer from laser velocimetry data is considered. The quality of the inversion is tested via a comparison between experimental data and simulation results obtained with a 3 dimensional time domain elastodynamic BIEM using parallel computing. The agreements of these results are satisfactory. The feasibility of the determination of defects based on the laser measurements is also investigated. The size and location of an unknown defect are determined with high accuracy.